This circuit makes use of a constant current source to control the temperature of a direct current heating element. The integrated circuit must be mounted on a heat sink.
This circuit makes use of a stroboscopic tube, a component that no longer exists today. The...
This small voltage regulator was found in a 1969 EEE. More powerful transistors can be used to...
We have already presented this circuit, obtained from manuals from other manufacturers of the used...